A customer brought in some Zo Black Ice 18 and had me string an APDGT @55/60 and a Yonex RDS 003 (100) @ 58/50. Any thoughts on this string/tension? I haven't heard or read much about it. The Babolat is for an 11 yr old girl. I was concerned, but my protests fell on deaf ears. At least this teacher is not making me string Duralast any more!